Cable power trench well

The utility model belongs to the technical field of electric power wells, and particularly relates to a cable electric power trench well which comprises a U-shaped prefabricated electric power well, fixed sliding frames are installed on the two sides of the inner wall of the U-shaped prefabricated electric power well at equal intervals in an embedded mode, a T-shaped sliding groove is formed in the middle of one side of each fixed sliding frame, and fixed clamping grooves are formed in the edge of one side of each fixed sliding frame at equal intervals. L-shaped supports are arranged on one side of the fixed sliding frame at equal intervals, T-shaped sliding blocks are welded to the middles of one sides of the L-shaped supports, fixed clamping holes are symmetrically formed in the positions, close to the T-shaped sliding blocks, of the middles of one sides of the L-shaped supports, fixed clamping pins are installed in the fixed clamping holes, and one sides of the fixed clamping pins are located in the fixed